According to the no-hair theorem, static black holes are described by a Schwarzschild
spacetime provided there are no other sources of the gravitational field. This requirement …

We consider a universal relation between moment of inertia and quadrupole moment of
arbitrarily fast rotating neutron stars. Recent studies suggest that this relation breaks down …

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The physical interpretation of the exact solutions of the Einstein field equations is, in general,
a challenging task, part of the difficulties lying in the significance of the coordinate system …

Giant pulsar frequency glitches as detected in the emblematic Vela pulsar have long been
thought to be the manifestation of a neutron superfluid permeating the inner crust of a …

The tidal Love numbers parametrize the conservative induced tidal response of self-
gravitating objects. It is well established that asymptotically-flat black holes in four …

The aim of this work is to study the relativistic accretion thick disc model raised by a
deformed compact object that slightly deviated from spherical up to the quadrupole moment …

We elaborate on a powerful tidal interaction formalism where the multipole dynamics is kept
generic and encoded in a linear response function. This response function is the …

No-hair theorems are uniqueness results constraining the form of the metric of black holes in
general relativity. These theorems are typically formulated under idealized assumptions …

We construct multipole moments for stationary, asymptotically flat, spacetime solutions to
higher-order curvature theories of gravity. The moments are defined using 3+ 1 techniques …